Legio I Syriaca

Legio I Syriaca was a legion of the Roman Army which was raised in Antioch, Roman Syria by Publius Ventidius Bassus in 46 BC. It was stationed on the frontier with Parthia, and, having pledged its loyalty to Mark Antony after the assassination of Julius Caesar in 44 BC, the legion took part in Antony's campaigns against Parthia.